MB-Speciale or Biondetti Speciale was a hybrid built in 1932 by Clemente Biondetti, utilizing a Bugatti chassis mated with a 2.5-liter 8-cylinder Maserati M26 engine, with Maserati radiator and grill. The front looked like a Maserati but the side view of the chassis and cockpit with the cast alloy 8-spoke wheels gave a Bugatti appearance. The combination of superior Bugatti handling with 185 hp of the Maserati 26M engine, compared with 180 hp of the T51 Bugatti did not seem to be a great advantage. In the 1932 Targa Florio Biondetti had retired after four laps or half distance. In the 1933 Biondetti built a new version of the MB-Speciale, utilizing a Bugatti chassis with a 3-liter 8-cylinder Maserati engine. In 1950 Clemente started in the Italian Grand Prix in his another hybrid vehicle – Ferrari -Jaguar which combined the body from Ferrari 166 and the engine from Jaguar XK120 sports car.
The model is the conversion based on IXO Bugatti model from Altaya “100 ans de sport automobile” collection.
| Season | Series | Event |
| 1932 | Grand Prix | Targa Florio |
| Driver | No. | Entrant |
| Clemente Biondetti | 11 | C. Biondetti |
| Scale | Manufacturer | Collection |
| 1:43 | Brian Phipps / IXO Conversion | |
| Cat. No. | Quality | Rarity |
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